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193674 (2001 DT99)
Classification: Main-belt Asteroid          SPK-ID: 2193674
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2396458930858977 5.5417e-08  
a 2.79179293550391 2.0114e-08 au
q 2.122751224164175 1.5258e-07 au
i 7.156224958464134 5.3202e-06 deg
node 256.8520969773427 5.5341e-05 deg
peri 241.7445997478309 5.7558e-05 deg
M 53.40995453033251 1.4835e-05 deg
tp 2458747.719865682037
(2019-Sep-21.21986568)
6.8876e-05 TDB
period 1703.818120698557
4.66
1.8413e-05
5.041e-08
d
yr
n .2112901580436307 2.2834e-09 deg/d
Q 3.460834646843644 2.4934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      7503 days (20.54 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:57:02  

Additional Information
 Earth MOID = 1.14742 au 
 Jupiter MOID = 1.6693 au 
 T_jup = 3.275 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457431.5 (2016-Feb-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2407143868297694 5.5419e-08  
q 2.11915648766542 1.5272e-07 au
tp 2457044.011917342742
(2015-Jan-21.51191734)
6.1857e-05 TDB
node 256.8771727586744 5.5346e-05 deg
peri 241.7502289971036 5.7538e-05 deg
i 7.157477678203145 5.3209e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      7503 days (20.54 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:57:02  

Additional Information
 Jupiter MOID = 1.6693 au 
 T_jup = 3.275 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.071235218955202E-15 -8.422732322910355E-15 1.518386988484507E-12 1.73405859319329E-14 4.191951867407239E-13 -6.704312300369407E-15
q -8.422732322910355E-15 2.332354209879963E-14 -4.027553583803537E-12 -4.808652231696777E-14 -1.097239897412165E-12 1.845660788189414E-14
tp 1.518386988484507E-12 -4.027553583803537E-12 3.826259845131942E-9 6.561340490226398E-12 1.028500857488184E-9 -6.059209708870605E-12
node 1.73405859319329E-14 -4.808652231696777E-14 6.561340490226398E-12 3.063176406117494E-9 -3.036819335123423E-9 -3.97223348739725E-11
peri 4.191951867407239E-13 -1.097239897412165E-12 1.028500857488184E-9 -3.036819335123423E-9 3.310627680038517E-9 3.779075229230406E-11
i -6.704312300369407E-15 1.845660788189414E-14 -6.059209708870605E-12 -3.97223348739725E-11 3.779075229230406E-11 2.831240959769756E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO418040  
diameter diameter 3.755 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193674 (2001 DT99)          Discovered 2001-Feb-17 by NEAT at Haleakala
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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